Some critics claim that all the great questions in science have already been answered or are simply unanswerable. But a leading defender argues that reports of science’s death have been greatly exaggerated.

The ability to churn out ever greater volumes of information in a variety of formats has exceeded our ability to process it. Fortunately, firm action, both personal and political, can help clear the air.

Recognizing that tumor cells lurking in the body after cancer treatment will cause a relapse of cancer, scientists are working to employ nature’s army-the immune system-to destroy remaining enemy outposts.